Glass-molding apparatus.



- 'Be it known thatwe, FRED C. and United Statesand residents ofMoundsville; in the county of Marshall and State of West arena am e.MESSNEB Ann JGHN mnmm sameness, or nonnnsvrtnn, inner vine GSS-MLDI NGAPPARATUS.

specification of Letters Eatent. Pmtggatgsl {Jane 3%325.

. Applicatienfilcfi Hey 1a isle. Serial No. seems.

To all whom it may concern OI-IN W. LAMPARTER; citizens of ,the

Yirginizn have invented certain 'new'and useful Improvements inGlass-Molding Apparatus, of which the following is a specification.

This invention relates to the manufacture of hollow glassware, andparticularly to blown-body articles having end or neck portions whicharev shaped by pres ing, and the primary object is' to: provi e improvedmeans, for automatically controlling and timing the flow of air. whichblows the article body, the admission of this air being governedbythe-movement of the plunger in such manner that it enters the glassafter the plunger has accomplished the neck formmg or pressingoperation. I

A further ob ect 1s to so arrange the mech anism that the air whichoperates the pressing plunger is utilized for the subsequent blowingoperation, its passage around the plunger operating piston and thrhughthe plunger being controlle'dby the movement of the piston.

' In the accompanying drawings, Figure 1 is a ve 'tical section of anadaptation of the appara us for producing threaded-end condimentholders, one section of the two-part mold being'in-elevation with theplunger mechanismin retracted position. Fig. 2 is a' similar view withthe plunger mechanism raised, inthisview the mold cavity being shown atright angles to Fig. 1, thereb illustrating the two mold sections. Fig.8 is a view similar to Fig. 1 showing an adaptation of the mechanism formolding a lipfornled :lrticle such as a small decanter, the

I plungei being shown in raised position.

Referring to the drawings, the mold 2' is ofusual sectional form withthe sections thereofraised to close around a boss 3 on base plate-ilasis usual in glass mold practice. the mold sections beinghinged-connected "and provided with handles in the usualmanb the othersection foigretaining it in closed MESBNER- ,9. The lower endof shapedto impart the desired finish or configuration to the end of the article,in the indicated at 17.

position; the-cover formedwith the pro? jecting head or: boss 8 whichforms an end Wall of proper shape for the molding cavity the moldingcavity is adaptation of Figs. 1 and 2 this entrernity portion beingreduced and properly grooved to form the threaded cavity 10 in whichshaped the threaded neck B of a salt cellar or other condiment holder A.ln'the form shown in Fig. 3, the lower portion of the molding cavity isreduced to form the neck C of adecanter-like vessel D, and at the base.of the neck-forming cavity is the annular ofiset 11' for the-neck lip E.v

The plunger 12 which cooperates withythe mold is adapted to enter thelatter through an opening 13- in base plate 4, the plunger projectingfrom apiston 14 operative in cylinder 15. The plunger is lport-ed'longi- Also 7 opening outwardly from port 16 are the exhaust ports orout lets 18. The bore of cylinder-15; is formed withlhe annular port19,; and when the tudinally at 16 and this port" extends into and openslaterally through piston l tas plunger is projected -intomoldcocperating positiomasjn Fig.2, the rear end ot the piston overlapsport 19, thereby opening communication between ports 16 and 17 and therear end of-the cylinder and admitting .air from the latter to tliemold.Compressed air from any suitable source may pass to the cylinder throughinlet 20.

Inoperation, with the plunger retracted. as in Fig. 1, a suitable quotaof glass is placed in the moldyand the latter is closed by cover 5. Withthe plunger in lowered position exhaust ports 18 are open totheatmosphere so that the ,air within the lower portion of the mold andbeneath the glass may freely escape. Thereupon-air is ad mitted tocylinder 15 which results in rais ring the piston and projecting theplunger into the mold. therebr'accomplishing the major portion of theneck-formingoperation within the contracted extremity ofthev moldcavity, in the adaptation of Fig. 2 the threaded extremity of thecondiment holder being thus formed. and in the adaptation shown in Fig.3 the neck and lip of the article'being given proper shape. Elevaiontionof the plunger closes exhaustports 18 by placing them within caseopenings 13,

l From 'the foregoing, it

zia iid as the upward movement approaches completion piston l i uncoversthe lower end of cylinder port 19, thereby passing'pistonactuating airaround the'endof the piston and through ports 17 and plunger port 16into the'mold .and blowing the body of the article and at the same timecompleting so much of the neck-shaping portion as has not ,been carriedto'completion by the entrance of the plunger into the mold.

adapted 'to'be variously used for. the producgtion. of'pressed-neckblown-body articles, those here illustrated'being only examples.

of, many articles for the manufacture of which the invention may beemployed.

"We claim;' j

I 1'.v The, combination of a mold having a portion thereof adapted. tocooperate with a plun'gerin shaping a part .of the glass article by'pressing,the mold also having a portion in which another'p'art of thevarticle- 'isfshaped by blowing, a plunger adapted to enter the mold andcotiperate'withthe portion thereof in which the pressed part of thearticle is shaped, the plunger formed withan aihpassage which at one endis open through the mold-entering portion of the pl'1'1n, g;erv and.with another 'part of the passage -open to' admit compressed air whenthe plunger s in position' for 'such: admission, and a part having anair. supply'passage with which vthe plunger passage 1sadapted toregister during the mold-enter- .ingmovement of the plunger.

QQTh e combination ofaglass mold havinga portion. thereof shaped to formthe exterior of an article neck and another por-.

' 'tion' shaped to form part of the article by blowing,

nock-shaping portion of the latter,

bore; the piston and cylinder a tubular plunger adapted to be Y with thea plunger-actuating piston and cylinder, the piston and cylinderbeingported wlth the piston port communicating with the plunger portsadapted to be placed in register by the mold-entering movement of theplunger for admitting compressed air through the latter .and into themold while the. plunger is in pressing position. V

3. The combination of a glass mold, ,a tubular plunger adapted'toenterthe mold and. cotiperatewi'th the latter in forming a portion ofanarticle, the mold having a part in which another portion of'the-articleis formed by blowing, the plunger formed with exhaust ports adapted tobe closed and entered in the mold and cooperate withdrawing movements ofthe plunger,

will be seen that opened, respectively, by themoldentering.

and means operative while the plunger is entered in- -the moldyforadmitting compressed an to the latter through the plunger.- l. Thecombination of a mold having a portion thereof shaped tocooper'ate witha plunger in shaping a portion ,of'a glass art cle by press ng, the moldalso having a part in which another portion of the art clebe entered inthe mold, the plunger ported longitudinally through its pressingextremity with said port open laterally, and' is shaped by blowing, aplunger adapted to Z a part through which the plunger moves having anair admission port positioned to register with the lateral port of theplunger for admitting compressed air through the I plunger to the moldwhen the plunger is in pressing positionf 5. The combination of a moldhaving a portion thereof shaped to coiiperate' with a plunger in shaping:a portion of a' glass 7 article by pressing, the mold also having apart in which-another portion of the article is shaped by blowing, aplunger adapted to be entered-inthe mold, the plunger portedlongitudinallythrough its pressing extremity-with the longitudinal porthaving a lateral branch for admitting air and alsohavinga lateral outletlocated intermediate said -air-admitting branch and the pressingextremity of the plunger, means for closing the lateral outlet when theplunger is en- 'tered in the mold and for opening the same when theplunger is withdrawn, and a part through which the plunger moves havinga port positio'ned'to register with the lateral inlet branch of theplunger port when the plunger is in pressing position for admittingcompressed air through the plunger and' into the mold.

6. The combination of a ,glass' mold shaped at one end to form theexterior of, an article, a plunger adapted to be entered in the mold andcooperate with the moldend formation for shaping the article neck, apiston secured to the plunger, and a cylinder in which the pistonoperates, the plunger formed with longitudinal port; which is openlaterally through a face of the piston, the cylinder being portedtoadmit piston-actuating fluid into the plunger and tubular plungeradapted to enter the mold V and cooperate with the latter in forming oneend of an article, a plunger-actuating piston and cyliurder, andmeansfor admit; i

ting piston-actuating fluid into the tubular plunger after the.latter,has been projected;

into the mold. v I p I p 8. .The combinationof ;.a-.'glass=molda in andcoiinerate-with the mold in shaping I tubular-plunger adapted tubeenteredtli piston,

an end of a glass article, a piston to which v the plunger is secured, acylinder for the and means operative after the plunger has beenprojected into the moldfor passing fluid from the eyh'nder into theplunger. 1 r I v e 9 The combination of a glass -mold,- a tubuiarplungeradapted to be enteredvin and cooperate with the mold'in forming one endof an articlga piston secured to the plunger and with a port extendingthrough the plunger and laterally through the piston, a cylinders-forthe piston, the cylinder estubiish communiend of the cylinder the pistonhas bore being ported to cation between the rear and the piston portafter moved sufliciently to project the plunger into the mold.

"In testimony Whereeig We afiix our signatures-in presence of twoWitnesses.

' FRED o. MESSNER.

